/*输入10个学生5门课的成绩,分别用函数求
(1)每个学生平均分;
(2)每门课的平均分*/

#include <stdio.h>
struct Stu
{
float cause[5];
}student[10]; /*定义一个结构休*/
float Eva_stu(int n) /*求每个学生的平均分*/
{
int i;
float sum=0;
for(i=0;i<5;i++)
sum=sum+student[n].cause[i];
return sum/5;
}

float Eva_cause(int n) /*(2)每门课的平均分*/
{
int i;
float sum=0;
for(i=0;i<10;i++)
sum=sum+student[i].cause[n];
return sum/10;
}
int main()
{
int i,j;
printf("Input the ten students scores of every cause:\n");
for(i=0;i<10;i++)
{
printf("[student%d]:\n",i+1);
for(j=0;j<5;j++)
{
printf(" Cause1:");
scanf("%f", &student[i].cause[j]);
}
}
printf("Eva of every students as folows:\n");
for(i=0;i<10;i++)
printf("\tstudent%d: %f\n",i+1,Eva_stu(i));
printf("Eva of every causes as folows:\n");
for(i=0;i<5;i++)
printf("\tCause%d: %f\n",i+1,Eva_cause(i));

return 0;
}